Paving-block



J. P. ZELTON.

PA BLOCK.

(No Model.)

No. 449,739. Patented Apr. 7,1891.

UNITED STATES PATENT FFICE.

JAMES P. HAZELTON, OF NEIV STRAITSVILLE, OHIO.

PAVING-BLOCK.

SPECIFICATION forming part of Letters Patent No. 449,739. dated April'7, 1891.

Application filed November 28, 1890- Serial No: 372,946. (No model.)

To all whom it may concern:

Be it known that I, J AMES P. HAZELTON, a citizen of the United States,residing at New Straitsville, in the county of Perry and State of Ohio,have invented a certain new and useful Improvement in Paving-Blocks, ofwhich the following is a specification.

My invention relates to the improvement of paving-blocks of that classwhich are employed in the construction of roadways, sidewalks, &c.; andthe objects of my invention are to provide an improved paving-block ofthis class of such form as to facilitate the production of a durable andsimply-constructed pavement; to so construct the same as to produce afirm bearing of the blocks against each other; to so unite said blocksas to prevent a horizontal or vertical displacement of either block ofthe pavement, and to produce a substantial paving-surface which shallpresent an attractive appearance. These obj cots I accomplish in themanner illustrated in the accompanying drawings, in which- Figure 1 is aperspective view of one form of my improved paving-block. Figs. 2, 3,and 4: represent modified forms thereof. Fig. 5 is a sectional viewthrough several of the blocks shown in Fig. 1 laid together; and Fig. 6is a plan View of a portion of a street-pavement consisting of myimproved blocks.

Similarletters refer to similar parts through the several views.

a represents the paving-blocks, which, as shown, are formed by thecombination in one body of two or more hexagonal bodies. The preferableform of block shown in Fig. l of the drawings is approximately in theform of a cross, the arms a and o of which are of equal length and eachhaving such number of faces and being of such shape as to form atwo-thirds portion of a hexagonal body. Two of the oppositely-locatedblock-arms (indicated by (F) are of a height or thickness equal only toone-half the height or thickness of the main body of the block, one ofsaid shallow arms being flush with the upper side of the block-body, andthe opposite arm being flush with the lower side of said body, thusresulting in the formation in each side of the block of a depressedangular seat, as shown at b.

In laying together the above-described form of paving-blocks the uppershallow arm of one block is seated and made to bear upon the lowershallow arm of an adjoining block, the angular side notch of one blockbeing filled by the angular arm end of another. It will readily be seenthat all the angular side faces of the blocks may be made to interlockwith each other, as shown in Fig.6 of the drawings, without reference tothe order of laying. As shown in Fig. 2 of the drawings, I may, however,form the block-arms of equal height throughout, or, as shown in Fig. 3of the drawings, may omit entirely from the block one of the shallowarms a shown in Fig. 1. It is obvious that the shallow arm shown in Fig.3 might correspond in helght with the body of the block, thus producinga block having three corresponding pro ections or arms. If desired, theblock may be formed by the combination of two hexagonal bodies, the twocorresponding inner sides of which are formed integral with the body, asshown in Fig. 4. In either form of block, however, it will be observedthat the obtuse angles formed by the connection of the side faces ofhexagonal bodies are preserved, and that these faces being of uniformarea the projections of one block will fill the angles of adjoiningblocks and result in the formation of an approximately continuoussurface. It will also be observed that the numerous sides presented bythe above-described form of block and their angular connection with eachother will produce such lateral bearing of the blocks against each otheras to serve to hold the blocks firmly in their proper relative position.

As shown in Fig. 5 of the drawings, an overlapping of the shallowblock-arms is produced, which will tend to distribute the weight of oneblock upon an adjoining block, and at the same time so interlock saidblocks as to prevent any tendency of one block to sink beneath thesurface of another, which, as is well known, is a common fault ofblock-pave ments where the foundation is not of a uniform solidity.

As shown in Fig. 5 of the drawings, the small angular spaces which maybe formed in laying the blocks along the side of the curbing a may befilled by eorrespmidinglyshaped filling-blocks c.

If desired, the upper edges of the blocks nuiy be suitably beveled ortheir upper surfaces suitably grooved or roughened to enable horses togain a foothold thereon.

From the construction shown and described it will not only be seen thatat substantial and durable form of pavement may be produced, but thatsaid blocks being reversible and adapted to be connected on all sidesthe operation of laying the same may be aeeonr plished with ease andrapidity.

Having now fully described my invention,

